Table 2
Diversity of Mammals by Terrestrial Ecoregion
North American Mammals Website
http://www.mnh.si.edu/mna
Species Occurrence / Terrestrial EcoregionMojave
Desert / *Sonoran
Desert / Chihuahua
Desert
Species Richness / 129 / 152 / 149
Jaccard’s Similarity Index / 54% / 38%
Unique Species as % / 3.1% / 0.7% / 20.8%
Threats (NT, V, E, CE)** / 2/5/0/2
even-toed ungulates
Pronghorn (Antilocapra americana) / X / Xe / X
Bison (Bison bison ) / X / X
Bighorn sheep (Ovis canadensis) / X / X / Xv
Elk (Cervus elaphus) / X / X / X
Mule deer (Odocoileus hemionus) / X / X / X
White-tailed deer
(Odocoileus virginianus) / X / X / X
Collared peccary
(Pecari tajacu) / X / X
Carnivores
Coyote (Canis latrans) / X / X / X
Common gray fox
(Urocyon cinereoargeteus) / X / X / X
Kit fox (Vulpes macrotis) / X / X / X
Swift fox (Vulpes velox) / X
Ocelot (Leopardus pardalis) / X / X
Canada lynx (Lynx canadensis) / X
Bobcat (Lynx rufus) / X / X / X
Cougar (Puma concolor) / X / X / X
Jaguarundi (Puma yaguarondi) / X / X
Hooded skunk(Mephitis macroura) / X / X
Striped skunk (Mephitis mephitis) / X / X / X
Western spotted skunk
(Spilogale gracilis) / X / X / X
Fisher (Martes pennanti) / X
Long-tailed weasel (Mustela frenata) / X / X / X
American badger (Taxidea taxus) / X / X / X
Ringtail (Bassariscus astutus) / X / X / X
White-nosed coati (Nasua narica) / X / X
Northern raccoon (Procyon lotor) / X / X / X
American black bear (Ursus americanus) / X / X / X
Bats
Western mastiff bat (Eumops perotis) / X / X / X
Underwood’s mastiff bat (Eumops underwoodi) / X / X
Pallas’s mastiff bat (Molossus molossus) / X
Pocketed free-tailed bat
(Nyctinomops femorosaccus) / X / X / X
Big free-tailed bat
(Nyctinomops macrotis) / X / X / X
Brazilian free-tailed bat
(Tadaria brasiliensis) / Xnt / Xnt / Xnt
Ghost-faced bat
(Mormoops megalophylla) / X / X
Mexican long-tongued bat (Choeronycteris mexicana) / X / X
Hairy-legged vampire bat
(Diphylla ecaudata) / X
Mexican long-nosed bat
(Leptonycteris nivalis) / X
Southern long-nosed bat (Leptonycteris yerbabuenae) [Leptonycteris curasoae] / X / X
California leaf-nosed bat
(Macrotus californicus) / Xv / Xv / Xv
Pallid bat (Antrozous pallidus) / X / X / X
Townsend’s big-eared bat
(Corynorhinus townsendii) / Xv / Xv / Xv
Big brown bat (Eptesicus fuscus) / X / X / X
Spotted bat (Euderma maculatum) / X / X / X
Allen’s big-eared bat
(Idionycteris phyllotis) / X / X / X
Silver-haired bat
(Lasionycteris noctivagans) / X / X / X
Western red bat (Lasiurus blossevillii) / X / X / X
Red bat (Lasiurus borealis) / X
Hoary bat (Lasiurus cinereus) / X / X / X
Southern yellow bat (Lasiurus ega) / X / X / X
Southwestern myotis (Myotis auriculus) / X / X
California myotis (Myotis californicus) / X / X / X
Western small-footed myotis
(Myotis ciliolabrum) / X / X / X
Long-eared myotis (Myotis evotis) / X / X / X
Little brown bat (Myotis lucifugus) / X / X / X
Fringed myotis (Myotis thysanodes) / X / X / X
Cave myotis (Myotis velifer) / X / X / X
Long-legged myotis (Myotis volans) / X / X / X
Yuma myotis (Myotis yumanensis) / X / X / X
Evening bat (Nycticeius humeralis) / X
Western pipistrelle (Pipistrellus hesperus) / X / X / X
Eastern pipistrelle
(Pipistrellus subflavus) / X
Opossums
Virginia oppossum (Didelphis virginiana) / X / X / X
Insectivores
Least shrew (Cryptotis parva) / X
Cockrum's desert shrew
(Notiosorex cockrumi) / X / X
Desert shrew (Notiosorex crawfordi) / X / X / X
Arizona shrew (Sorex arizonae) / X / X
Cinereus shrew (Sorex cinereus) / X
Merriam’s shrew (Sorex merriami) / X / X
Montane shrew(Sorex monticolus) / X / X / X
Dwarf shrew (Sorex nanus) / X
Ornate shrew (Sorex ornatus) / X / X
Water shrew (Sorex palustris) / X / X
Inyo shrew (Sorex tenellus) / X
Vagrant shrew (Sorex vagrans) / X
Broad-footed mole (Scapanus latimanus) / X / X
Rabbits, Hares, & Pikas
Antelope jackrabbit (Lepus alleni) / X / X
Black-tailed jackrabbit
(Lepus californicus) / X / X / X
White-sided jackrabbit
(Lepus callotis) / X
White-tailed jackrabbit
(Lepus townsendii) / X
Desert cottontail (Sylvilagus audubonii) / X / X / X
Brush rabbit (Sylvilagus bachmani) / X / X
Eastern cottontail (Sylvilagus floridanus) / X / X / X
Mountain cottontail (Sylvilagus nuttallii) / X
American Pika (Ochotona princeps) / X
Rodents
American beaver (Castor canadensis) / X / X / X
Western jumping mouse
(Zapus princeps) / X / X / X
North American porcupine
(Erethizon dorsatum) / X / X / X
Yellow-faced pocket gopher
(Pappogeomys castanops) / X
Desert pocket gopher
(Geomys arenarius) / X
Plains pocket gopher
(Geomys bursarius) / X
Jones’s pocket gopher
(Geomys knoxjonesi) / X
Texas pocket gopher
(Geomys personatus) / X
Botta’s pocket gopher
(Thomomys bottae) / X / X / X
Townsend’s pocket gopher (Thomomys townsendii) / X
Southern pocket gopher
(Thomomys umbrinus) / X / X
Bailey’s pocket mouse (Chaetodipus baileyi) / X / X
California pocket mouse
(Chaetodipus californicus) / X / X
Chihuahuan pocket mouse
(Chaetodipus eremicus) / X
San Diego pocket mouse
(Chaetodipus fallax) / X / X
Long-tailed pocket mouse
(Chaetodipus formosus) / X / X
Hispid pocket mouse
(Chaetodipus hispidus) / X / X
Rock pocket mouse
(Chaetodipus intermedius) / X / X / X
Nelson’s pocket mouse
(Chaetodipus nelsoni) / X
Desert pocket mouse
(Chaetodipus penicillatus) / X / X / X
Spiny pocket mouse
(Chaetodipus spinatus) / X / X
Agile kangaroo rat
(Dipodomys agilis) / X / X
Desert kangaroo rat (Dipodomys deserti) / X / X / X
Merriam’s kangaroo rat
(Dipodomys merriami) / X / X / X
Chisel-toothed kangaroo rat
(Dipodomys microps) / X / X
Ord’s kangaroo rat (Dipodomys ordii) / X / X / X
Panamint kangaroo rat
(Dipodomys panamintinus) / X
Dulzura kangaroo rat
(Dipodomys simulans) / X / X
Banner-tailed kangaroo rat
(Dipodomys spectabilis) / X / X
Mexican spiny pocket mouse (Liomys irroratus) / X
Dark kangaroo mouse
(Microdipodops megacephalus) / X
Pale kangaroo mouse
(Microdipodops pallidus) / X
White-eared pocket mouse
(Perognathus alticola) / Xce
Arizona pocket mouse (Perognathus amplus) / Xnt / Xnt / Xnt
Plains pocket mouse
(Perognathus flavescens) / X
Silky pocket mouse
(Perognathus flavus) / X / X / X
San Joaquin pocket mouse (Perognathus inornatus) / X
Little pocket mouse (Perognathus longimembris) / X / X
Merriam’s pocket mouse
(Perognathus merriami) / X
Great Basin pocket mouse (Perognathus parvus) / X
Northern pygmy mouse
(Baiomys taylori) / X / X
Southern red-backed vole
(Clethrionomys gapperi) / X
Sagebrush vole (Lemmiscus curtatus) / X
California vole (Microtus californicus) / Xv / X
Long-tailed vole
(Microtus longicaudus) / X / X / X
Mogollon vole
(Microtus mogollonensis) / X / X
Montane vole (Microtus montanus) / X / X
Meadow vole
(Microtus pennsylvanicus) / X
White-thoated woodrat
(Neotoma albigula) / X / X / X
Bushy-tailed woodrat
(Neotoma cinerea) / X
Arizona woodrat (Neotoma devia) / X / X
Dusky-footed woodrat (Neotoma fuscipes) / X / X
Desert woodrat (Neotoma lepida) / X / X
Mexican woodrat
(Neotoma mexicana) / X / X
Southern plains woodrat
(Neotoma micropus) / X
Stephen’s woodrat (Neotoma stephensi) / X / X / X
Muskrat (Ondatra zibethicus) / X / X / X
Mearn’s grasshopper mouse
(Onychomys arenicola) / X
Northern grasshopper mouse
(Onychomys leucogaster) / X / X / X
Southern grasshopper mouse
(Onychomys torridus) / X / X / X
Coues’s rice rat (Oryzomys couesi) / X
Texas mouse (Peromyscus attwateri) / X
Brush mouse (Peromyscus boylii) / X / X / X
California mouse (Peromyscus californicus) / X / X
Canyon mouse (Peromyscus crinitus) / X / X
Cactus mouse (Peromyscus eremicus) / X / X / X
Osgood’s mouse (Peromyscus gratus) / X
White-footed mouse (Peromyscus leucopus) / X / X
Deer mouse (Peromyscus maniculatus) / X / X / X
Mesquite mouse (Peromyscus merriami) / X / X
Northern rock mouse (Peromyscus nasutus) / X
White-ankled mouse
(Peromyscus pectoralis) / X
Pinyon mouse (Peromyscus truei) / X / X / X
Fulvous harvest mouse
(Reithrodontomys fulvescens) / X / X
Western harvest mouse
(Reithrodontomys megalotis) / X / X / X
Plains harvest mouse
(Reithrodontomys montanus) / X / X
Arizona cotton rat (Sigmodon arizonae) / X / X
Tawny-bellied cotton rat
(Sigmodon fulviventer) / X / X
Hispid cotton rat
(Sigmodon hispidus) / X / X
Yellow-nosed cotton rat
(Sigmodon ochrognathus) / X / X
Harris’s antelope squirrel
(Ammospermophilus harrisii) / X / X / X
Texas antelope squirrel
(Ammospermophilus interpres) / X
White-tailed antelope squirrel
(Ammospermophilus leucurus) / X / X / X
Gunnison’s prairie dog
(Cynomys gunnisoni) / X / X
Black-tailed prairie dog
(Cynomys ludovicianus) / X / X
Northern flying squirrel
(Glaucomys sabrinus) / X / X
Yellow-bellied marmot
(Marmota flaviventris) / X / X
Abert’s squirrel (Sciurus aberti) / X / X
Arizona gray squirrel (Sciurus arizonensis) / X / X
Western gray squirrel (Sciurus griseus) / X / X
Mexican fox squirrel (Sciurus nayaritensis) / X
Eastern fox squirrel (Sciurus niger) / X
California ground squirrel
(Spermophilus beecheyi) / X / X
Golden-mantled ground squirrel
(Spermophilus lateralis) / X / X
Mexican ground squirrel
(Spermophilus mexicanus) / X
Mohave ground squirrel
(Spermophilus mohavensis) / Xv
Piute ground squirrel (Spermophilus mollis) / X
Spotted ground squirrel
(Spermophilus spilosoma) / X / X / X
Round-tailed ground squirrel
(Spermophilus tereticaudus) / X / X / X
Thirteen-lined ground squirrel
(Spermophilus tridecemlineatus) / X
Rock squirrel (Spermophilus variegatus) / X / X / X
Yellow-pine chipmunk
(Tamias amoenus) / X
Gray-footed chipmunk (Tamias canipes) / X
Gray-collared chipmunk
(Tamias cinereicollis) / X / X
Cliff chipmunk (Tamias dorsalis) / X / X / X
Merriam’s chipmunk (Tamias merriami) / X / X
Least chipmunk (Tamias minimus) / X
California chipmunk
(Tamias obscurus) / X / X
Palmer’s chipmunk (Tamias palmeri) / X V
Panamint chipmunk (Tamias panamintinus) / X
Lodgepole chipmunk (Tamias speciosus) / X / X
Uinta chipmunk (Tamias umbrinus) / Xce
Douglas’ squirrel (Tamiasciurus douglasii) / X
Red squirrel (Tamiasciurus hudsonicus) / X / X / X
Armadillos
Nine-banded armadillo
(Dasypus novemcinctus) / X
* The Sonoran desert borders the Gulf of California. When an ecoregion search is done for this desert, marine mammals are included in the return. These have been removed from this species list as the regions being compared are terrestrial ecoregions.
** Conservation Status (Threats)
nt Near Threatened
v Vulnerable
e Endangered
ce Critically Endangered
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